[Q] NT charging only with the wall charger?! - Barnes & Noble Nook Tablet

I don't know if its a problem in my NT.
It changes only when concocted to the wall charger, not even when it plugged to the PC.
Anyone of you notice this?

TThe NT or the NC comes with a 10 pin charging cable, i was told it has a higher capacity to charge your device. If you don't use that cable, charging will be much slower.
Using the pc will only triggle charge, meaning very slowly, and only with you turn the nt to sleep while plugged in ur pc.
It is just one of the proprietary feature on the nt, sorry.

It does not make any sense.
The NT wall charger is 0.5A. I plugged it to my iPhone charger, which is 1A, with the original cable and it didn't charge.

shaharg said:
It does not make any sense.
The NT wall charger is 0.5A. I plugged it to my iPhone charger, which is 1A, with the original cable and it didn't charge.
Click to expand...
Click to collapse
0.5A must be the input, because the Nook Color/Tablet charger is 1.8A or 1.9A output

You are right. It is 1.9A
My mistake.

a normal micro usb cord cannot "fast charge" so in order for it to work you must trickle charge....plug it into your computer, unmount/eject the device(done on computer) and just turn it off/turn off the screen,
takes about an hour per ~10%.

Yup, its weird. It will say clearly: "not charging" but if you let it sit there plugged into any power source (0.5 amp USB included) and wait for a bit, the battery percentage will go up.
I read an early review, I think on Engadget, and it mentioned this as one of the few negatives of the device. Turns out, it just has a stupid UI.

Well, when you're using it, it isn't charging. There isn't enough juice to charge and run the device so it just runs off the USB power and doesn't use the battery. It needs to be sleeping then it can trickle charge as it uses a lot less power in sleep mode.

Related

Battery Driver (Quick charge, over 500mA)

Is there a program/driver that will allow the leo to pull more than 500mA when connected via usb? My TP2 (CDMA) has this installed and its bad ass. I can charge faster off things like a cable box (or my computer) than the wall. It pulls ~928mA.
Right now I have a Y adapter.. I plug the power only usb into the computer and the data into an external source (like a duracell powersource mobile). tBattery reads "AC" for charger input. Then, I unplug from the powersource and plug the data part of the usb Y into the computer, hopefully forcing it to switch to usb mode while retaining high current draw. No dice, its still on AC.. and the data cable is not communicating with the computer/phone. If i were to unplug the power only cable, it would probably switch right over to usb mode and WMDC would pop up and all that. But.. I would be limited to 500mA, which is.. really weak since the phone can only use about 150 of that for charging!
Charge with your phone off may help?
That is not possible, because PC can't give more than 500mA on one USB port.
Check in Windows device manager (PC) and find Generic USB Hub. Then look on "Power" tab.
Uploaded with ImageShack.us
You can't. You could burn USB port in your computer.
Mike
This is a screenshot taken from my touch pro 2.. Plugged into the usb port of my laptop. This is possible. It also is possible with my cable box. It requires a driver/app from nuerom..
http://www.nuerom.com/BlogEngine/po...g-nueBattery2-For-TP2-CDMA-v12-Build-122.aspx
btw.. ports are either in high power or low power.. 500mA should really say 500mA+... Some ports are NOT capable of doing this.. I'd imagine I could trigger the same by connecting devices to all three of my usb ports on my laptop.
many gigabyte mainboards have the function to deliver 3x more power through usb ports. ive tested myself and can only confirm it is charging within 1.5~ 2 hours completely
Yeah - maybe, but if... higher charging amperage causing battery/phone overheating and dramaticly shorting battery life. I know, that dedicated HTC HD2 charger having 5V and 1A (1000 mA), but this is TRAVEL charger and should be used only in this situation by reasons previously wroted by me. I charge my LEO only with PC.
i think it depends on the charger itself. i bought a docking station and while reading the manual i came across a switch that changes the mode between "charge" and "sync"
this lets your device acknowledge that the charger is capable of providing more mA than a normal USB port so that it can draw more power.
The ac charger (or the battery driver itself) is smart enough to trickle down the charge rate as the battery reaches maximum capacity. We have an aluminum battery cover that seems to have a heat pad to transfer that heat from the battery. The battery driver probably has provisions to stop charging if batt temp reaches a certain #.
500mA charge is not enough. The phone itself is able to draw more current than a 500mA line could provide.
I just plugged a y adapter into my laptop. Plugging only the power portion in. tBattery says USB for charger input.. Taking the data/power 'part' of the Y adapter cable and plugging it into a usb power source (with no data pins, like a duracell powersource mobile) puts the phone into ac charger input. I disconnect the duracell charger and leave only the phone plugged into my y adapter to my computer... still says AC charging.
I'm now able to charge the phone using 1 computer usb port. World doesn't end. Phone doesn't explode.
Pictures are worth a thousand convoluted paragraphs.

[SOLVED] Atrix will not power on, green light flashes, plugged in and.... nothing!

Went to sleep last night with my Atrix plugged in as I normally have had all my phones, was playing with it right before I went to sleep and everything worked just fine, woke up this morning and the phone will not power on!
First tried to power it on unplugged and the green light flashed for 2 seconds, and nothing happened. Okay, weird, but I'll go with it. Plugged it in, and the green light stays on now until I press the power button! Once pressed, it flashes off, flashes on for 2 seconds and stays off. Nice. I thought the green light meant it was fully charged - when I woke up this morning, it had no green light on, but it was plugged in just fine all night - grabbed my Jawbone ERA and plugged it in to the charger I had the Atrix connected to and it started charging right away, so I know it works....
Pulled the battery, tried plugging it in and power it on without the battery. Nothing. Tried putting in the battery and plugging it in again to "jump start it" as I had done yesterday when I first got it - apparently you can't just charge the thing when connected to a laptop if the phone is off, it will power on even if you power it off again! Nothing.
What the hell happened in it's sleep? I KNOW rooting it didn't cause sleep death.... This thing doesn't have a custom ROM or any undervoltage adjustments, so why the hell is it acting up??? Damnit, right when I got EVERYTHING set up the way I wanted it too.... can't bring it in to the store and give it up with all my personal stuff on there now, I need this thing to power on to wipe it first!!! I'm leaving it connected to the laptop with the green light on for a while and will see what happens in an hour or so....
EDIT - just searched for and tried to hard reset the phone from this thread, the phone still won't even power on to get to the recovery screen!!!
UPDATE - see below and use the SUPPLIED Moto AC charger or at least one with over 5.0V - NOT a PC and NOT a USB hub!
use the charger that came with the phone. My old HTC ones won't charge the phone for some reason. I bet your battery is just dead.
Did you use the provided charger? I tried plugging my Atrix in to the charger I used for my N1, and found that it did not provide enough current. With the old charger, after the phone died, I had similar symptoms where the green light would flash but phone would not come on. Plugged it in with the Moto provided charger, and 5 minutes later all was good...
I had the same problem. Thought I was gonna have to take it back to the store. I don't know what the problem was but I took the battery out for 5 minutes. Then I plugged it into the wall charger(wouldn't work with PC). I didn't turn it on for 30 min, just left it on the charger. Then I hit the volume rocker and it showed the battery charging symbol which it didn't do before. And then I was able to power it on
Same thing here. I purposely drained my battery on the first use. Plugged the usb cable into the PC and nothing. Same blinking green light with no response. I also thought I'd have to return the phone. Then for S & Gs I plugged it into the wall charger and it came to life. Once I got the battery charged a little bit I plugged it into the PC and it started to charge again. Don't know why, but it worked.
Have been running around the house trying to find valid outlets, and that does indeed appear to be the problem. I found it out the hard way though, should have kept an eye on the thread - used a power outlet instead of a PC USB connection and the screen fired right up! Yes, the phone showed the battery with 0% in it, but at least the screen finally came on!
How I have my phone set up normally is connected to my charging valet on my dresser, connected with a 15 foot USB cable that plugs directly into my desktop. Since the extension is good for just one USB connection, I have that connected to a USB hub and then a MicroUSB cable connects my phone from there. The Captivate, and all the other phones I've ever used, not to mention my Zune and Jawbone ERA, all eat that up and have no issues since the USB hub is powered not by the computer (seven USB cables is just too many for a single PC connection) but by the power outlet in the charging valet. I wonder if the hub is distributing the power requirement for each device and the Atrix needs more than others.
I also figured out that the Moto charger has a 5.1V output on it, as does my Jawbone AC charger. Now I need to start making sure that my each one of my chargers in the cars I own has that same type amount of juice too! You go up 29% in battery capacity and so do the requirements to charge it, huh?
Thanks for all the help, marking this SOLVED....
I used the charger in my bedroom that I've used for the Captivate and others before it and it didn't provide enough juice to charge the Atrix. It quickly switched between charging and not charging. I still had 40% battery showing when I woke up though which was nice. It had been off of charge since 10am yesterday.
Plugged it into an HTC charger and it's fine. The one that didn't work is not a modular charger so the power cord is hard wired to the plug.
Alright, a quick update.... Got the phone charged to 100% while it was off and plugged into the AC outlet with the Moto charger. Put my SIM card back in it - couldn't be without a phone all day! - and fired up the Atrix. Went to Battery Info to see what the status is and while plugged into my USB hub, it says
Battery Status: Discharging
Power plug: USB
....
Battery Voltage: 4124 mV (or 4.124V)
Click to expand...
Click to collapse
What the hell? Then I went right after that and plugged it into the Moto AC charger, it says:
Battery Status: Full
Power plug: AC
....
Battery Voltage: 4207 mV (or 4.207V)
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Click to collapse
Why are POWERED USB hubs and PCs not strong enough to charge the phone? I tried ALL my outlets in my vehicles just now and they ALL show full battery status and plugged into AC! Who screwed this up????
GarciaM25 said:
Why are POWERED USB hubs and PCs not strong enough to charge the phone? I tried ALL my outlets in my vehicles just now and they ALL show full battery status and plugged into AC! Who screwed this up????
Click to expand...
Click to collapse
Did you download the PC Charging Drivers that Motorola requires you to have in order to charge via PC and USB cable? If not, look here.
Battleship said:
Did you download the PC Charging Drivers that Motorola requires you to have in order to charge via PC and USB cable? If not, look here.
Click to expand...
Click to collapse
Wait, you have to have specific drivers on the PC so that the phone will allow a power cable (let's not even worry about it being a USB cable for a second) to charge the phone properly? I have the Motorola Media Link software installed, and that has a ton of drivers on it, that wasn't enough? MORE drivers are required to charge a cell phone? This is madness!
Sorry about the necromancy, but had this problem myself but it is NOT due to a lack of voltage. Thought I'd actually solve this, the problem is CURRENT.
USB2 ports will only ever supply 500ma which simply isn't enough to charge the atrix when it's dead. USB2 powered hubs won't supply any more than this either to meet the USB2 spec. The fact that the AC adapter works is because they tend to have a higher output current in the region of 1-2 amps (you may notice the phone, or any other device for that matter, charges faster with AC adapters for this reason).
On a similar note, cheap car chargers only output 500ma. I know with my desire I can have it plugged in and it charges, but if I use GPS it actually draws more current than it can charge at resulting in the battery draining (albeit, slowly).
So, make sure you have a higher current AC/Car charger, or alternatively, plug it into a USB3 port to charge as USB3 spec allows 900ma (some mobos output up to 1A) which is enough to charge the Atrix.
Stewge said:
Sorry about the necromancy, but had this problem myself but it is NOT due to a lack of voltage. Thought I'd actually solve this, the problem is CURRENT.
Click to expand...
Click to collapse
Hey, no problem, if there's something I misstated, then please, correct it!
Stewge said:
So, make sure you have a higher current AC/Car charger, or alternatively, plug it into a USB3 port to charge as USB3 spec allows 900ma (some mobos output up to 1A) which is enough to charge the Atrix.
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Click to collapse
Not sure about this..... It's been about a year since I got all my USB3.0 gear, and I was super excited about it because I thought that my phone would charge ridiculously fast because of the added output, but I remember reading that 3.0 uses extra pins and those pins account for the added voltage and bandwidth of the cable - we don't have those extra pins when you step down from 3.0 to 2.0, so we lose the ability to charge devices faster as a result. I don't know if I actually proved that theory, but after I read up enough on it, I thought I just didn't have to with that knowledge..... again, correct me if I'm wrong, I've got a lot of 3.0 gear here!!!
GarciaM25 said:
Not sure about this..... It's been about a year since I got all my USB3.0 gear, and I was super excited about it because I thought that my phone would charge ridiculously fast because of the added output, but I remember reading that 3.0 uses extra pins and those pins account for the added voltage and bandwidth of the cable - we don't have those extra pins when you step down from 3.0 to 2.0, so we lose the ability to charge devices faster as a result. I don't know if I actually proved that theory, but after I read up enough on it, I thought I just didn't have to with that knowledge..... again, correct me if I'm wrong, I've got a lot of 3.0 gear here!!!
Click to expand...
Click to collapse
There are indeed extra pins in the USB3 standard but these are to transmit data only. The original USB2 data pins are only there for legacy support and USB3 transmissions use the extra lines. There's still only the 1 VBUS pin which supplies the +5V power. There's also no harm in offering higher current on the connection as a device will only ever draw as much current as it needs until it tops out the supplier, not the other way round
EDIT: Another solution could be to use a splitter cable (common with 2.5" drives)so you can draw from 2 ports, but with a micro connector. I've never actually seen one with USB micro but a quick look on ebay says they do exist
nsaia said:
Same thing here. I purposely drained my battery on the first use. Plugged the usb cable into the PC and nothing. Same blinking green light with no response. I also thought I'd have to return the phone. Then for S & Gs I plugged it into the wall charger and it came to life. Once I got the battery charged a little bit I plugged it into the PC and it started to charge again. Don't know why, but it worked.
Click to expand...
Click to collapse
Hi, can I know that when you plug it into the wall charger, is there any light on? Mine has no light on when plug to wall charger. But I can get the light green when plug into PC USB. Can you share that?
cscmf99 said:
Hi, can I know that when you plug it into the wall charger, is there any light on? Mine has no light on when plug to wall charger. But I can get the light green when plug into PC USB. Can you share that?
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Click to collapse
This is the exact same issue that I am facing now. Did you ever manage to find a solution for this problem?
atrix 4g not coming on
Is there any real fix to this issue i have search high and low and all i am seeing people talking about the battery id dead ... i have two battery that is fully charger and the phone still not coming up.
Hi all, sorry that im posting after two years ago but i am facing exactly the same problem, but i plugged it in my USB port, wich i think its a usb2, and i got the screen on but the cellphone did not say charging instead of that was connect your charger, and it was lower than 3% then it turned off. What can it be a solution??
None of the avobe solutions worked?
Which rom/kernel are you using?
I too have this same issue. My Atrix won't come on. I have 2 of the same phone. I tried the charger and cable from both phones. Neither work. When I first plug it it, the green light comes on for a few seconds then it goes out. I even opened the phone and removed the battery. Used a voltage tested and found my battery has 3.7 volts. Thats almost 100% charge. So it not a problem of power. I plugged the phone to my computer and same green light for a few seconds then gone. Won't do anything. No battery display or anything. I even did the simulated battery removal procedure. Didn't work. Is there anything else I can try? Can't get to recovery mode without display unless someone has a fix for that?

Need USB charing cable...

Hello
As you know, our device doesnt get charged by the USB cable it comes with (or veeeeeery slow).
As I have a solar charging device with USB slots, I need a compatible USB cable. Somehow it has to work, is there some converter or something ?
Thanks!
Dominik
Eh? My device charges just fine with the included cable.
You will have trouble charging it from a solar powered USB charger as I'm guessing it will only put out 5V at maybe 500mA. That's not enough to juice the TF. It's not the cable though.
Because ASUS used a USB connector on its cable, unfortunately does *not* mean this USB connector 100% follows the specifications for USB.
It has a trick, whereby, when connecting to your PC it works like USB at 5v. But, when connecting to a 15v charger it switches to use 15v instead.
The TF charging indicator, and Android OS battery settings, only indicate charging when 15v applied. At 5v it may trickle charge with screen & wifi & ??? turned OFF. I never try charging at 5v because it is too slow.
LOL
I don't think it charges at all at 5v?
EDIT:
How can I delete a post?
Neo3D said:
I don't think it charges at all at 5v?
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Click to collapse
It will, provided you have the amperage. But its only trickle so its only really charging with the screen off and charges slower than the tablet uses battery.

Why doesn't the USB cable charge from PC?

First off, I'm not some dumbass who doesn't know that the USB cable has to be in a wall jack to charge the NT. I'm just curious as to why this cable only charges with a wall jack and not when it's plugged into a computer...
Because
Well it does not give out enough power from the computer.
so it does not charge quickly.
But if you plug the cable in to your computer and the nook while leaving it on overnight, it should charge.
so it does charge, but just really slowly
(click dem thanks buttons)
Helps to turn the screen off too.
Sent from my BNTV250 using Tapatalk
Wall charger is 2000ma most PC USB are 500ma max.
I don't think the 500mA limit is the whole story. My Nook won't charge off of other 2A USB charger I have nor with any other cable (even if using the Nook charger).
EDIT:
http://forum.xda-developers.com/showthread.php?t=1386602
You need the stock cable to charge at the higher rate with compatible 2A chargers. Compatible chargers will have the data pins shorted. I've found that my HTC HD2's charger will actually charge my NT at the higher current as long as I use the NT's stock cable.

OEM Charge Cable

So my crappy OEM charge cable finally broke. The charger is still fine, but am I now stuck on trickle charge only using a regular micro usb cable? Any other options or rom solutions that will force normal charge using a regular micro usb cable?
Thanks,
Sorry I don't have a solution to your problem, I myself haven't found any USB cable other than the OEM that won't trickle charge regardless of roms.
Your signature shows you're using CM10.
Before the OEM cable crapped out, were you able to charge it normally?
While using the tablet with the wall charger, the battery % goes up and not down?
Reason I'm asking is because when I use any CM10+ roms, I'm always stuck on with trickle charge.
The tablet thinks its trickle charging from USB and just slow drains away until it's dead.
Only way for me to charge it when it dies is to turn it off and leave it charging over night, all night long.
I know it's not the OEM wall charger and OEM cable.
I've went back to stock Nook, CM7/CM9 and the charger/cable works perfectly fine.
So that leaves either something is wrong with these CM10+ roms, or my Nook Table is a special case...
Kate84 said:
Sorry I don't have a solution to your problem, I myself haven't found any USB cable other than the OEM that won't trickle charge regardless of roms.
Your signature shows you're using CM10.
Before the OEM cable crapped out, were you able to charge it normally?
While using the tablet with the wall charger, the battery % goes up and not down?
Reason I'm asking is because when I use any CM10+ roms, I'm always stuck on with trickle charge.
The tablet thinks its trickle charging from USB and just slow drains away until it's dead.
Only way for me to charge it when it dies is to turn it off and leave it charging over night, all night long.
I know it's not the OEM wall charger and OEM cable.
I've went back to stock Nook, CM7/CM9 and the charger/cable works perfectly fine.
So that leaves either something is wrong with these CM10+ roms, or my Nook Table is a special case...
Click to expand...
Click to collapse
Yes, the OEM charger / OEM cable was charging fine on CM10. Trickle charge works overnight, but the way to speed things up a bit is, if the nook is fully discharged, plug it in and let it trickle till it boots, then turn it on, have it boot and shut screen off and leave it to charge. When the nook is 'on' but asleep, it trickle charges faster than a dead nook hooked up to a regular usb.
You are saying that a regular micro usb was charging quickly under cm7/9 and stock roms?
WnG88 said:
Yes, the OEM charger / OEM cable was charging fine on CM10. Trickle charge works overnight, but the way to speed things up a bit is, if the nook is fully discharged, plug it in and let it trickle till it boots, then turn it on, have it boot and shut screen off and leave it to charge. When the nook is 'on' but asleep, it trickle charges faster than a dead nook hooked up to a regular usb.
You are saying that a regular micro usb was charging quickly under cm7/9 and stock roms?
Click to expand...
Click to collapse
Do you have Fry's Electronics near you?
The one three and a half miles from my location has charges and cables for around $25. OEM.
B&N doesn't have them.
WnG88 said:
Yes, the OEM charger / OEM cable was charging fine on CM10. Trickle charge works overnight, but the way to speed things up a bit is, if the nook is fully discharged, plug it in and let it trickle till it boots, then turn it on, have it boot and shut screen off and leave it to charge. When the nook is 'on' but asleep, it trickle charges faster than a dead nook hooked up to a regular usb.
You are saying that a regular micro usb was charging quickly under cm7/9 and stock roms?
Click to expand...
Click to collapse
Have you tried to order online?
http://www.barnesandnoble.com/p/nook-color-new-cable/27359237?ean=9780594459453

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